Year	Number
1990	442123
1991	443153
1992	438804
1993	439749
1994	441568
1995	444148
1996	447275
1997	450410
1998	455193
1999	458644
2000	461972
2001	464287
2002	466011
2003	466647
2004	465087
2005	464388
2006	455384
2007	449629
2008	448073
2009	434858
2010	433089
2011	416692
2012	405728
2013	394074
2014	382722
2015	371716
2016	360617
2017	351753
2018	344610
2019	339780
2020	336442
2021	336132
2022	342358